Fully compliant with USB 2.0 specifications backwardly
2.Compatible with USB 1.1
3.Plug&Play installation
4.Add 4 USB 2.0 Full-speed or Low-SPeed devices
5.Full speed up to 480 Mbps
6.Over-friendly and ergonomic design
7.Support OS:Windows 98/2000/me/xp,Mac 8.6 or Higher version